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HD 127174


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SANTIAGO 91, a right ascension catalogue of 3387 stars (equinox J2000).
The positions in right ascension of 3387 stars belonging to the Santiago67 Catalogue, observed with the Repsold Meridian Circle at Cerro Calan,National Astronomical Observatory, during the period 1989 to 1994, aregiven. The average mean square error of a position, for the wholeCatalogue, is +/-0.009 s. The mean epoch of the catalogue is 1991.84.

Three colour observations of southern red variable giant stars
UBV observations have been made of southern red variables of varioustypes over a period of two years. Accurate light curves of about 35variables have been obtained; in many cases the observations coveredmore than one cycle. It appears that the M-type SRb and Lb variablesdefine a curved strip in the (B-V)-(U-B) plane. The mean (U-B) of thevariable stars is about 0.5 mag bluer than the (U-B) of the nonvariableK-type giants. The red variables may be divided into different groups:the carbon stars and the M-type variables, of which the M-type stars areagain to be divided into three groups on the basis of their colorvariations and consequently their loops in the two-color plane.

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观测天体数据

星座:長蛇座
右阿森松:14h30m36.54s
赤纬:-29°18'35.7"
视星:7.674
距离:917.431 天文距离
右阿森松适当运动:-16.3
赤纬适当运动:8.4
B-T magnitude:9.542
V-T magnitude:7.829

目录:
适当名称   (Edit)
HD 1989HD 127174
TYCHO-2 2000TYC 6744-134-1
USNO-A2.0USNO-A2 0600-16848118
HIPHIP 70941

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